{"dataset":"MainBuyer UK price observations","market":"GB","market_name":"United Kingdom","methodology":"Each observation is stored only when MainBuyer has a timestamped checked retailer offer. Missing days are not interpolated or invented. Historical low, high and median figures use recorded in-stock observations only.","observations":[{"currency":"GBP","in_stock":true,"observed_at":"2026-10-27T04:10:58+00:00","price":"67.69","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B09MF2X151?maas=maas_adg_api_584538503507687357_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PBcfe6cdca35bea7104e3de61e1b0cf89d_6f2cbbcf6edd&aa_adgroupid=edfc63ddddeecd0842195656ca290d79_PBSEP_!!!affid!!!_118045_&aa_creativeid=a43e2iQCt9zk8nqUVwod0T_aYY1N6O3FwAQqmTTvuV9sm5Bo_c"}],"product":{"brand":"X-SENSE UK","evidence_url":"https://mainbuyer.com/evidence/products/x-sense-wireless-interconnected-carbon-monoxide-alarm-detector-replaceable-battery-powered-co-alarm-detector-with-easy-to-read-lcd-complies-with-en-b09mf2x151/prices","gtin":null,"id":20463,"model_number":null,"name":"X-Sense Wireless Interconnected Carbon Monoxide Alarm Detector, Replaceable Battery-Powered CO Alarm Detector with Easy-to-Read LCD, Complies with EN","product_url":"https://mainbuyer.com/product/x-sense-wireless-interconnected-carbon-monoxide-alarm-detector-replaceable-battery-powered-co-alarm-detector-with-easy-to-read-lcd-complies-with-en-b09mf2x151","urn":"MB-AWIN-GB-B09MF2X151"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"67.69","historical_low":"67.69","last_observed_at":"2026-10-27T04:10:58+00:00","low_30d":"67.69","low_90d":"67.69","median_price":"67.69","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-10-27T04:10:58+00:00"}}